Me too...It would seem to me that a clogged cat would create more pressure
(back pressure) and not vacuum. I realize this isn't so...but why? How
about Vacuum 101, The Why's and Why Not's.
Thanks,
James
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Rick Barnes
Sent: Saturday, September 22, 2007 5:39 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: RE: MAP sensor
I am so clueless about vacuum...unless it's a Hoover
Rascal
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
bernd@dodgetrucks.org
Sent: Saturday, September 22, 2007 3:31 PM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: MAP sensor
Clogged cat makes the vacuum go up, not down.
- Bernd
>
> Clogged cat?
>
> Rascal
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Steve
> Preston
> Sent: Saturday, September 22, 2007 12:35 PM
> To: dakota-truck@dakota-truck.net
> Subject: DML: MAP sensor
>
>
> Well,I finally bought a vacuum gauge,and checked my work truck with
> it. Judging from actual vacuum,it's all right. Runs at 18-19 in HG at
> idle,jumps to zero when I snap the throttle,climbs to a little over
> the idle reading,then settles back to the original reading. However,my
> MAP sensor doesn't read close to this at all. It stays at about 9-10
> in HG. Bad sensor,right?
>
> History lesson: 2003 Dak 3.9 CC 2WD V6 with 42RE,intermittent missing
> and bad power loss while driving. TPS ok,new plugs and wires,dist.cap
> ok,fuel pressure and all injectors ok.
>
> Thanks!
>
> Steve P.
>
>
>
>
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This archive was generated by hypermail 2b29 : Tue Oct 02 2007 - 15:23:18 EDT